Combination blast and exhaust heating device.



No.864,062. PATENTED' AUG. 20, 1907.

P. J. BALLINTINE.-

COMBINATION BLAST AND EXHAUST HEATING DEVIGB.

v APPLIUATIQN FILED MAR. 1, 1906.

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BIO/864,062.

PATENTED AUG. 20, 1907. P. J. B'ALLINTINE. COMBINATION BLAST AND EXHAUST HEATING DEVICE.

' APPLICATION FILED MAB. 1, 1906.

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F. J. BALLINTINE.

COMBINATION BLAST AND EXHAUST HEATING DEVICE.

APPLICATION FILED MAR. 1, 190a.

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li in ssea: 2 Ira/87221271 UNITED STATES ll 'ATEN T ()Fiiii) FRANK .l'. BALLIN'lINE, OF KANSAS CITY, MISSOURI, ASSIGNUR- 'IO Till, PARKER WASHINGTON 00., OF GHARLES'lOWN, WEST VIRGINIA, A CltP lLXIION Oi WEST VIRGINIA.

COMBINATION BLAST AND EXHAUST HEATING DEVICE.

Specification of Letters Patent.

Patented g. 20 1 907.

Application filed March 1, 1906. Serial No. 303,642.

To all whom it may concern:

Be it known that I, FRANK .I. BALLINTINE, a citizen of the United States, residing at Kansas City, in the county of Jackson and State of Missouri, have invented a new and useful Improvement in Combination Blast and Exhaust Heating Devices, of which the following is a. specification. I

My invention relates to repairing devices for asphalt pavements, and specifirnlly relates to a device for heating and softening the material at the sides and bottom of a deprr on by means of a blast of highly heated air. As is well known, the object of such heating and softening is to cause the fresh material to adhere strongly where applied in filling up the depression.

To this end my invention consists in certain novel and peculiar combinations and construction of parts, as hereafter described and claimed; and in order that the same may be fully understood, reference is had to the accompanying draw: .gs, in which,

Figure l a top plan view of an apparatus embodying my invention. Fig. 2 is a partly sectional sidev clevation of the same; Fig. 3 is a. rear elevation of the some; Fig. 1 is a \-'ertical section lalien on line iv-iv of Fig. 2, looking forward.

For convi-nionco of transportation the apparatus is mounted on a. running gear comprising wheels, a reach 2, an arch 3 supported by the trout axle, and a pair of inverted arches l supported by the rear axle. Arches 3 and 4 support a rectangular steel framo 5:, which supports the apparatus described hereinaitcrfi The space inclosed by the rear portion oi the irame is occupied by a metallic cylindrical sholl (3 having closed ends, or head, 7 and 8. Said shell is supported by lugs 10 of two straps 9, riveted thereto, said lugs resting upon the frame-bars 5. The upper ends of straps 9 are bent shown in Fig. 3, and form supports for a crude-oil tanlc'll. From tank I]. an outlet pipe 12 passes down and then rearwardly through an opening 13, of larger diameter in the head 7, and terminates a short distance within the shell 6. Said pipe is provided with a. cut-off and regulating val 'e H. The shell of (i is lined with a. layer of fire-bi "'epl! part of forward head 7. The brick dined shell 6 iorms a combustion chamber and is provided with a brick-wall 1G, constructed of brick, by preference Supported by a platform 17 in front of said shell, a rotary air pump, or blower 13, of which 19 is the inlet pipe. The outlet pi po 21., provided with ahand valve 26, is of larger diameter than the crude-oil pipe 7 roundsrthc latter for a short distance, hown: to permitthis, a suitable opening is cut into pipe 21' to 12, and sur.

' head 7.

brick lining and sh ll 6.

cone is provided with air-inlets 47, and also with an outer rotatable con in, also having openings 47, adapted to registerwith those'of the inner cone. By turning the outer cone, which properly a damper, the draft into the combustion chamber (3 may to some extent be regulated. A. second and larger air blower 24, has its outlet connected to an opening in the This blower is also driven by the engine 22, through a belt 26. nicatc with the body of the combustion chamber, but opens into a semicircular drum 27, secured to the head 7. From this drum, a plurality of air-fines 28 extend rez'irwnrdly and are connected to a second semicircular drum 2!), at th rear of the combustion chamber. Drum 29 is provided with a. downwardly-tapering nozzle 30, which terminates in the center of a. circular opening 31, oi larger diameter, through the A largo depending tube 32 is attached to the shell (3 below said opening 31, and mounted telescopically on tube 32 is the. upper tubular portion 3-11 of a sheet-metal hood ill, the sides or top oi which :u'rinclined downwardly and outwardly. The hood is provided with a spreader-plate 3-5, having oppositely-inclincii portions, the hinctions of which is to spread the blast of h ated air over the entire surlace of asphalt covered by the hood. A semi-circular damper 36, carried by r. stem having a handle 37, may be cut off from either side of the hood, at the will of the operator.

A prelerred means for raisin" and lower ng thohood consists, as shown. of n transverse rocli-v i 38 having two arms 39. depending rods ll) connecting said arms to the hood. a third arm ll on shall 38, a hand lever 42 having a laleh and merit "l3, and a.eonnccling-rml 44 onnecting said lever to roclurr-zu'm ll. hood 34, the lever 42 moved im'wzud; hood, rearward, and the latch and segment hold the hood at any desired height. The roclsshait 38, as

shown, is journaled by passing through the side. bars 5 Opmiing does not commu- 'Ioraisethe to lower the from the burner pipe 12 is ignited by inserting a match or torch through an opening 49 in the chamber 6. The engine 22 is started, thereby putting the blowers 18 and 24 into operation. The hood is lowered until it is 1 5 in contactiwiih the pavement. Air is drawn into thebustion chamber" and drives the heated gases and products of combustion down onto the surface to be heated. From the other blowers a blast ofair issues from pipe 21, feeding the flame, and passes over the bridge wall 16,

the outlet opening 31, and into'the hood. Thus the draft through the combustion chamber is maintained by the injector-1i ke action of the air blast issuing from the nozzle 30. An additional flow of fresh air enters through the damper 48 if the same be opened and also through opening 49. TheQ air-fiues 28 become heated to redness by the flame in the'combustion chamber. Therefore the air which traverses there and passes into the hood 34 carrying with it the contents of the combustion chamber is heated to avery high temperature and 2? the asphalt is theieby softened or melted, as the case 'may be. By raising the hood the heated surface can beinspected or tested at any time. The rapidity with which the pavement is heated can be regulated by regulating, the speed of the engine,which runs the blowers. The products of combustionare of course drawn down through openings '31 into the hood, and pass from under the hood into the atmosphere. When the matcrial has become sufficiently softened, the hood is I moved away, and fresh inateiial is applied in the usual back through the combustion chamber, down through manner until the depression is filled up flush withthe 35 surrounding surlace.

Having now described my invention, what I claim and desire to secure by Letters Patent, is:

1. In 5111 asphalt repairing device, a portable combustion chamber having one or more air inlets and an air 40 outlet; a hood a trunk leading from said outlet to the hood; a plurality of air-flues leading from one of said inlets to a drum at the opposite end of said chamber;

a nozzle extending from the drum to a point within said outlet; means for a current of air through said fines and heating means located'within the combustion chamber.

2. In an asphalt pavement repairing device, a portable combustion chamber having one or more air inlets and an air outlet; a hood; a trunk leading from said outlet to the hood; a plurality of air-fines leading frouione pf said inlets to a drum at the opposite end of said chamber; a

nozzle extending trom the drum to ,a point'yvithin said outlet; means foi-"impelling a current of air through the fines; an oil burner within the combustionchamber at one end thereof; a blower, and a dischargepipe therefor leading from the blower and surrounding theaburner pipe.

3. In an asphalt pavement repairing device, a portable combustion chamber having a bridge-wall and an airoutlet, an oil burner at one end ofsaid chamber,- an air blast pipe surrounding the burner pipe, a blower, two drums arranged at opposite endsof the upper portion of said chamber, air fiues connecting said 'drums, an airinlet pipe connecting the blower to one drum, an exhaust. nozzle extending from the other drum to said air-outlet,

and arranged to exhaust the products of combustion and a trunk connecting said outlet'to the hood.

In testimony whereof I ,afiix my signature in the presthe heated air from the combustion chamber, a hood, arid enc of two witnesses.

FRANK J. BALLIN'LINE.

Witnesses:

ELnANoRE C. WALTON, PEARL A. Gnms'r. 

